Table 4D5 - 70oC thermoplastic insulated and sheathed flat cable

with protective conductor

(COPPER CONDUCTORS)

Ambient temperature: 30oC

CURRENT-CARRYING CAPACITY (amperes) and VOLTAGE DROP (per ampere per meter):

Conductor operating temperature 70oC

Conductor cross- sectional area 1

Reference Method 100# (above a plasterboard ceiling covered by thermal insulation not exceeding 100 mm in thickness) 2

Reference Method 101# (above a plasterboard ceiling covered by thermal insulation exceeding 100 mm in thickness) 3

Reference Method 102# (in a stud wall with thermal insulation with cable touching the inner wall surface) 4

Reference Method 103# (in a stud wall with thermal insulation with cable not touching the inner wall surface) 5

Reference Method C* (Clipped direct)

Reference Method A* (enclosed in conduit in an insulated wall)

 Voltage Drop (per ampere per meter)

(mm2)

(A)

(A)

(A)

(A)

(A)

(A)

(mV/A/m)

1

13

10.5

13

8

16

11.5

44

1.5

16

13

16

10

20

14.5

29

             

2.5

21

17

21

13.5

27

20

18

4

27

22

27

17.5

37

26

11

6

34

27

35

23.5

47

32

7.3

10

45

36

47

32

64

44

4.4

16

57

46

63

42.5

85

57

2.8

For 90oC thermosetting insulated cable multiply 70oC limits by approx 1.3